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Amit Langote edee563456 Make FastPathMeta self-contained by copying FmgrInfo structs 
FastPathMeta stored pointers into ri_compare_cache entries via
compare_entries[], creating a dependency on that cache remaining
stable.  If ri_compare_cache entries were invalidated after fpmeta
was populated, the pointers would dangle.

Replace compare_entries[] with inline copies of the two FmgrInfo
fields actually needed (cast_func_finfo and eq_opr_finfo), copied
at populate time via fmgr_info_copy().  fpmeta now depends only on
riinfo remaining valid, which is already handled by the invalidation
callback.

Introduced by commit 2da86c1ef9 ("Add fast path for foreign key
constraint checks"), noticed while reviewing code for robustness
under CLOBBER_CACHE_ALWAYS.

Discussion: https://postgr.es/m/CA+HiwqFQ+ZA7hSOygv4uv_t75B3r0_gosjadetCsAEoaZwTu6g@mail.gmail.com
2026-04-01 18:43:40 +09:00
.github Add CODE_OF_CONDUCT.md, CONTRIBUTING.md, and SECURITY.md. 2024-07-02 13:03:58 -05:00
config Hardcode override of typeof_unqual for clang-for-bitcode 2026-03-16 19:24:49 +01:00
contrib Avoid including vacuum.h in tableam.h and heapam.h. 2026-03-31 12:43:52 -05:00
doc Fix miscellaneous issues in EXCEPT publication clause. 2026-04-01 09:13:43 +05:30
src Make FastPathMeta self-contained by copying FmgrInfo structs 2026-04-01 18:43:40 +09:00
.cirrus.star ci: Simplify ci-os-only handling 2025-08-14 12:09:34 -04:00
.cirrus.tasks.yml Enable test_cplusplusext with MSVC 2026-04-01 07:48:47 +02:00
.cirrus.yml ci: Per-repo configuration for manually trigger tasks 2025-08-14 11:54:03 -04:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Update .editorconfig and .gitattributes for postgresql.conf.sample. 2025-11-18 10:28:36 -06:00
.git-blame-ignore-revs Add commit 874da8b1f6 to .git-blame-ignore-revs. 2026-03-30 14:35:24 -05:00
.gitattributes Update .editorconfig and .gitattributes for postgresql.conf.sample. 2025-11-18 10:28:36 -06:00
.gitignore Update top-level .gitignore. 2022-12-04 15:23:00 -05:00
.mailmap Add a Git .mailmap file 2024-11-05 13:56:02 +01:00
aclocal.m4 autoconf: Move export_dynamic determination to configure 2022-12-06 18:55:28 -08:00
configure Add warning option -Wold-style-declaration 2026-03-30 23:34:13 +02:00
configure.ac Add warning option -Wold-style-declaration 2026-03-30 23:34:13 +02:00
COPYRIGHT Update copyright for 2026 2026-01-01 13:24:10 -05:00
GNUmakefile.in Allow selecting the git revision to be packaged by "make dist". 2024-05-03 11:08:50 -04:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Restore AIX support. 2026-02-23 13:34:22 -05:00
meson.build Enable test_cplusplusext with MSVC 2026-04-01 07:48:47 +02:00
meson_options.txt Update copyright for 2026 2026-01-01 13:24:10 -05:00
README.md Revise the style of a paragraph in README.md. 2024-03-21 10:16:41 -05:00

README.md

PostgreSQL Database Management System

This directory contains the source code distribution of the PostgreSQL database management system.

PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.

Copyright and license information can be found in the file COPYRIGHT.

General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.

The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.